Toro Reelmaster
4000?D Service Manual page 142

General Run and Transport Problems
Engine continues to run (but should not) when parking
brake is released or mow−backlap lever is in mow or
backlap with no operator on seat.
Engine kills when parking brake is released or
mow−backlap lever is moved to mow or backlap.
Engine kills during operation (operator sitting on seat).
4WD does not engage.
Battery does not charge.
Electrical System (Rev. C)
Seat switch plunger depressed with no operator on
seat.
Seat switch faulty or out of adjustment.
Short circuit or by−pass in seat switch circuit.
Operator sitting too far forward on seat (seat switch not
depressed).
Seat hinge, support pin or spring binding, preventing
seat switch from closing.
Seat switch is faulty or out of adjustment.
Seat switch wiring loose, corroded or damaged.
Operator moved too far forward on seat (seat switch
not depressed).
Low hydraulic oil level.
Engine overheated.
Wire broke or became disconnected.
4WD selector switch faulty.
4WD selector switch wiring loose, corroded or
damaged.
4WD solenoid valve faulty.
4WD solenoid wiring loose, corroded or damaged.
Problem is not electrical.
Loose or broken wire(s).
Faulty alternator.
Dead battery.
Alternator warning lamp is faulty or burned out.
Alternator warning lamp wiring loose, corroded or
damaged.
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